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Organic light emitting apparatus and method of producing the sameOrganic light emitting apparatus and method of producing the same description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20090267504, Organic light emitting apparatus and method of producing the same. Brief Patent Description - Full Patent Description - Patent Application Claims
1. Field of the Invention The present invention relates to an organic light emitting apparatus for use in, for example, a flat device display, and a method of producing the apparatus. 2. Description of the Related Art An organic light emitting apparatus having an organic electroluminescence (EL) device as a self light emitting device has been recently attracting attention because of its potential to serve as a flat device display. The organic EL device is obtained by laminating at least a first electrode, a stack layer including an organic light emitting layer, and a second electrode in the stated order on a substrate. The organic EL device is liable to cause the deterioration of its properties owing to moisture or oxygen; a trace amount of moisture peels the stack layer off of an electrode layer, and the peeling is responsible for the occurrence of a dark spot. In view of the foregoing, the organic EL device is covered with an etching glass cover, a sealing agent is stuck to the periphery of the resultant, and the inside of the resultant is mounted with a moisture absorbent so that moisture infiltrating from a sealing surface is absorbed by the moisture absorbent. As a result, the lifetime of the organic EL device is secured. The realization of a thin, space-saving flat device display using the organic EL device requires a reduction in space of the moisture absorbent around a light emitting area. An example of a method of sealing the organic EL device while eliminating the need for the moisture absorbent is a method involving laminating a sealing layer on the second electrode. A high-performance sealing layer for preventing moisture or oxygen from infiltrating into the stack layer is requested. A silicon oxynitride film obtained by a CVD method or a sputtering method, or a sealing layer obtained by laminating ceramic and an organic film has been specifically proposed as a sealing layer for an organic EL device. Moisture or oxygen can be shielded by using any one of those sealing layers each formed of an inorganic material for an organic light emitting layer. By the way, in the production of an organic light emitting apparatus having such organic EL device, from the viewpoint of a reduction in production cost, plural organic light emitting apparatuses are produced on a large substrate, and then division (separation) is performed. Each of the following proposals has been made as a method of dividing individual organic light emitting apparatuses from a large substrate on which plural organic light emitting apparatuses are formed. Japanese Patent No. 3,042,192 describes the following invention: scribing and breaking are sequentially performed from both surfaces of a bonded substrate in the division of the substrate so that damage to the substrate in a dividing step is reduced. Japanese Patent Application Laid-Open No. 2003-181825 describes the following invention: upon production of organic light emitting apparatuses by plural patterning, a pressure transmitting portion for transmitting a pressure in a breaking step from one substrate to the other substrate is formed, whereby a problem of defective sectioning of the substrate can be solved. However, when individual organic light emitting apparatuses are divided by employing a general scribing approach from a substrate on which plural organic light emitting apparatuses are formed, the peeling or cracking of a sealing layer occurs at a position where the apparatus is to be divided. As a result, moisture or a gas component infiltrates into a stack layer, thereby leading to the deterioration of display. None of Japanese Patent No. 3,042,192 and Japanese Patent Application Laid-Open No. 2003-181825 describes measures for a reduction in occurrence of the peeling and cracking of a sealing layer formed of an inorganic material at a position where the apparatus is to be divided. The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an organic light emitting apparatus that can be divided without receiving damage to a sealing layer such as peeling or cracking in a step of dividing individual organic light emitting apparatuses from a substrate on which plural organic light emitting apparatuses are formed, and a method of producing the apparatus. According to one aspect of the present invention, there is provided the following organic light emitting apparatus as means for solving the above-mentioned problems of the prior art. That is, an organic light emitting apparatus obtained by dividing plural organic light emitting apparatuses that are integrally formed includes: a substrate having at least a base material, the substrate having sides formed by dividing the substrate at its ends, and the substrate having three-dimensional portions formed on its surface along the sides; an organic light emitting device formed on the substrate, the organic light emitting device having a first electrode, an organic light emitting layer, and a second electrode in the stated order on the substrate; and an inorganic sealing layer formed to cover an upper portion of the organic light emitting device and the surface of the substrate and to extend toward the three-dimensional portions. According to another aspect of the present invention, there is provided the following method of producing an organic light emitting apparatus. That is, there is provided a method of producing an organic light emitting apparatus, the organic light emitting apparatus having a substrate, an organic light emitting device having a first electrode, an organic light emitting layer, and a second electrode formed in the stated order on the substrate, and an inorganic sealing layer formed to cover an upper portion of the organic light emitting device and a surface of the substrate and to extend toward an end of the substrate, the method including the steps of: forming the organic light emitting device having the first electrode, the organic light emitting layer, and the second electrode in the stated order on the substrate; forming a three-dimensional portion along a division line set in advance on the surface of the substrate; forming the inorganic sealing layer in the division line from above the second electrode so that the inorganic sealing layer straddles the three-dimensional portion; and dividing the substrate and inorganic sealing layer along the division line. According to the present invention, individual organic light emitting apparatuses can be divided without causing damage to a sealing layer such as peeling or cracking in a step of dividing individual organic light emitting apparatuses from a substrate on which plural organic light emitting apparatuses are formed. As a result, it can prevent moisture or a gas component from infiltrating into a stack layer completely, whereby an organic light emitting apparatus having a long lifetime in which the deterioration of light emission is suppressed can be obtained. Further features of the present invention will become apparent from the following description of exemplary embodiments with reference to the attached drawings. Continue reading about Organic light emitting apparatus and method of producing the same... Full patent description for Organic light emitting apparatus and method of producing the same Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Organic light emitting apparatus and method of producing the same patent application. Patent Applications in related categories: 20090284143 - Aromatic amine compound, and light-emitting element, light-emitting device, and electronic device using aromatic amine compound - Novel aromatic amine compounds are provided. Light-emitting elements having high emission efficiency and high reliability are provided. Further, light-emitting devices and electronic devices using the light-emitting devices are provided. 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Note that in the formula, Ar represents either a substituted or unsubstituted phenyl group or a substituted or unsubstituted biphenyl group; α represents a substituted or unsubstituted naphthyl group; β represents either hydrogen or a substituted or ... ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Organic light emitting apparatus and method of producing the same or other areas of interest. ### Previous Patent Application: Organic electroluminescence device Next Patent Application: Organic light emitting device and fabrication method thereof Industry Class: Electric lamp and discharge devices ### FreshPatents.com Support Thank you for viewing the Organic light emitting apparatus and method of producing the same patent info. 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